Dilating a triangle

Dilation is a technique for creating similar figures.[br][br]Each point is stretched outwards from the center point D by multiplying distances by the scale factor. (Outwards if the scale factor is bigger than 1.)[br][br]Move the points A, B, C to change the shape of the triangle.[br]Move the center point D to dilate from a different location.[br]Use the slider to change the scale factor.[br]Distances and ratios are measured and computed in the spreadsheet window. (Spreadsheet window does not appear if you are viewing this on a phone.)
What happens when the scale factor is bigger than 1?[br]What happens when the scale factor is equal to 1?[br]What happens when the scale factor is between 0 and 1?[br]What happens when the scale factor is equal to 0?[br]What happens when the scale factor is negative?[br][br]What happens when the center point (D) is inside the triangle?[br]What happens when the center point (D) is outside the triangle?[br]What happens when the center point (D) is at a vertex of the triangle?

Information: Dilating a triangle